Mox of the Land

When Mox of the Land enters the
battlefield, you may exile from your
hand one card and one forest until
Mox of the Land leaves the battlefield.
If you not, sacrifice Mox of the Land.
{ut}: add {g} or one mana that shares one
color with exiled card.
{g}{g}{4}: return exiled cards to your hand.
Discard 2 land cards: sacrifice Mox of the Land.